CN111088706A - Process for dyeing green by low-alkali reactive dye - Google Patents
Process for dyeing green by low-alkali reactive dye Download PDFInfo
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- CN111088706A CN111088706A CN201911356651.3A CN201911356651A CN111088706A CN 111088706 A CN111088706 A CN 111088706A CN 201911356651 A CN201911356651 A CN 201911356651A CN 111088706 A CN111088706 A CN 111088706A
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- 238000004043 dyeing Methods 0.000 title claims abstract description 88
- 238000000034 method Methods 0.000 title claims abstract description 38
- 239000000985 reactive dye Substances 0.000 title claims abstract description 28
- 239000003513 alkali Substances 0.000 title claims abstract description 25
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 59
- 239000000975 dye Substances 0.000 claims abstract description 53
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims abstract description 49
- 239000004744 fabric Substances 0.000 claims abstract description 49
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims abstract description 35
- 239000002270 dispersing agent Substances 0.000 claims abstract description 27
- 229910000029 sodium carbonate Inorganic materials 0.000 claims abstract description 23
- 235000017550 sodium carbonate Nutrition 0.000 claims abstract description 23
- 229910052938 sodium sulfate Inorganic materials 0.000 claims abstract description 14
- 235000011152 sodium sulphate Nutrition 0.000 claims abstract description 14
- 238000004140 cleaning Methods 0.000 claims abstract description 9
- 238000001035 drying Methods 0.000 claims abstract description 9
- 238000007493 shaping process Methods 0.000 claims abstract description 9
- 238000001816 cooling Methods 0.000 claims description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 28
- 238000010438 heat treatment Methods 0.000 claims description 24
- 238000005406 washing Methods 0.000 claims description 19
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 14
- 238000002156 mixing Methods 0.000 claims description 14
- 229920000742 Cotton Polymers 0.000 claims description 10
- 239000003795 chemical substances by application Substances 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 9
- 150000004965 peroxy acids Chemical class 0.000 claims description 9
- 238000009835 boiling Methods 0.000 claims description 8
- 239000013527 degreasing agent Substances 0.000 claims description 7
- 239000012530 fluid Substances 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 7
- 239000000835 fiber Substances 0.000 abstract description 5
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- 238000011031 large-scale manufacturing process Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000004753 textile Substances 0.000 abstract 1
- 238000005237 degreasing agent Methods 0.000 description 4
- 229920003043 Cellulose fiber Polymers 0.000 description 1
- 241000083869 Polyommatus dorylas Species 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004061 bleaching Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009940 knitting Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004627 regenerated cellulose Substances 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- YXZRCLVVNRLPTP-UHFFFAOYSA-J turquoise blue Chemical compound [Na+].[Na+].[Na+].[Na+].[Cu+2].NC1=NC(Cl)=NC(NC=2C=C(NS(=O)(=O)C3=CC=4C(=C5NC=4NC=4[N-]C(=C6C=CC(=CC6=4)S([O-])(=O)=O)NC=4NC(=C6C=C(C=CC6=4)S([O-])(=O)=O)NC=4[N-]C(=C6C=CC(=CC6=4)S([O-])(=O)=O)N5)C=C3)C(=CC=2)S([O-])(=O)=O)=N1 YXZRCLVVNRLPTP-UHFFFAOYSA-J 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/38—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using reactive dyes
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/0032—Determining dye recipes and dyeing parameters; Colour matching or monitoring
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
- D06P1/445—Use of auxiliary substances before, during or after dyeing or printing
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
- D06P1/673—Inorganic compounds
- D06P1/67333—Salts or hydroxides
- D06P1/6735—Salts or hydroxides of alkaline or alkaline-earth metals with anions different from those provided for in D06P1/67341
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
- D06P3/58—Material containing hydroxyl groups
- D06P3/60—Natural or regenerated cellulose
- D06P3/66—Natural or regenerated cellulose using reactive dyes
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Coloring (AREA)
Abstract
The invention relates to the technical field of textiles, in particular to a process for dyeing green by using low-alkali reactive dye, which comprises the following steps: step one, pretreatment; adding a chelating dispersant; step three, adding a dye; step four, adding a dyeing auxiliary agent; step five, cleaning; step six, softening; step seven, drying the cloth; and step eight, shaping the finished product. Since the anhydrous sodium sulphate and the soda ash are synchronously added in the dyeing auxiliary agent, the dye can be fully dissolved and synchronously adsorbed and fixed on the fiber, the using amount of the anhydrous sodium sulphate in the dyeing auxiliary agent is reduced, the mutual reaction of the dye and the dyeing auxiliary agent can be avoided, the problems of easy generation of color spots, color flowers and the like in the green dyeing process of the reactive dye are effectively solved, and the environment-friendly and energy-saving advantages are realized. The process for dyeing green by using the low-alkali reactive dye has the characteristics of simple process, low production cost and suitability for large-scale production.
Description
Technical Field
The invention relates to the technical field of spinning, in particular to a process for dyeing green by using a low-alkali reactive dye.
Background
The fabric knitted from cotton fiber, modal fiber, viscose fiber, regenerated cellulose fiber and other fibers in the knitting field adopts a low-alkali type reactive dye to dye green, and the conventional process comprises the steps of boiling and bleaching gray cloth, then dyeing by matching and combining the dyes containing active bright yellow, active turquoise blue and the like, firstly drawing the dye for 10 minutes at 40 ℃, drawing off the dye, running for 5 minutes for 20 minutes for anhydrous sodium sulphate, then running for 10 minutes for 30 minutes for soda, then running for 15 minutes, then heating up to 1 ℃/min, keeping the temperature at 65 ℃ for 15-30 minutes, then heating up to 1 ℃/min, keeping the temperature at 70 ℃ for 30 minutes, then heating up to 80 ℃ and keeping the temperature for 40 minutes, then washing with water, soaping, removing the floating color, and taking out of a cylinder. The process for dyeing green by using the low-alkali reactive dye in the prior art can easily cause problems of color spots, color flowers and the like, and the product percent of pass does not exceed 50 percent.
Disclosure of Invention
The invention aims to provide a process for dyeing green by using a low-alkali reactive dye, which can effectively solve the problems of easy generation of color spots, color flowers and the like in the process of dyeing green by using the reactive dye, and is environment-friendly and energy-saving.
In order to achieve the purpose, the invention adopts the following technical scheme:
provides a process for dyeing green by using low-alkali reactive dye, which comprises the following steps:
step one, pretreatment: boiling the grey cloth in a dye vat at a certain temperature for a certain time by using the treatment liquid;
step two, adding a chelating dispersant: after the pretreatment is finished, cooling to a certain temperature and adding a chelating dispersant;
step three, adding a dye: heating to a certain temperature, adding a dye, stirring and mixing the dye and the chelating dispersant for a certain time, and heating to a certain temperature and running for a certain time;
step four, adding a dyeing auxiliary agent: mixing anhydrous sodium sulfate and soda ash to be used as a dyeing auxiliary agent, cooling a dye vat to a certain temperature, adding the dyeing auxiliary agent for three times, and preserving heat for a certain time after the dyeing auxiliary agent is added;
step five, cleaning: after cooling, sequentially carrying out water washing, peracid and water washing, adding a soaping agent for cotton, heating to a certain temperature, and then keeping the temperature for a certain time;
step six, softening: then cooling to a certain temperature, softening with hot water and taking out of the vat to obtain a dyed fabric;
step seven, drying the cloth: tentering the dyed fabric obtained in the sixth step by using a high-temperature open-width dryer to dry the fabric;
step eight, shaping a finished product: and (5) tentering by adopting a high-temperature open-width dryer to shape the finished product.
In the technical scheme, in the first step, the grey cloth is boiled for 30-60 s at 75-85 ℃ in the dye vat by using the treatment liquid.
In the above technical scheme, in the first step, the treatment fluid comprises the following components in parts by weight:
0.5 to 2 portions of degreaser
1 to 3 portions of hydrogen peroxide
1-3 parts of sodium carbonate.
In the technical scheme, in the second step, after the pretreatment is completed, the temperature is reduced to 35-45 ℃, and then the chelating dispersant is added.
In the technical scheme, in the third step, after the temperature is raised to 75-85 ℃, the dye is added, the dye and the chelating dispersant are stirred and mixed for 5-15 min, and the temperature is raised to 80-90 ℃ for 10-20 min.
In the technical scheme, in the fourth step, the anhydrous sodium sulphate and the soda ash are mixed to be used as the dyeing auxiliary agent, the dyeing auxiliary agent is added for three times after the temperature of the dye vat is reduced to 75-85 ℃, and the temperature is kept for 20-40 min after the dyeing auxiliary agent is added.
In the fourth step, in the dyeing auxiliary, the mass ratio of the anhydrous sodium sulphate to the calcined soda is 1: 0.8-1.2;
and adding the dyeing auxiliary agent for three times, wherein the mass ratio of the dyeing auxiliary agent to the dyeing auxiliary agent added each time is 1:2:7 in sequence.
In the technical scheme, in the fifth step, after the temperature is reduced, water washing, peracid and water washing are sequentially carried out, a soaping agent for cotton is added, the temperature is increased to 90-100 ℃, and then the temperature is kept for 5-15 min.
In the technical scheme, in the sixth step, the temperature is reduced to 75-85 ℃, and the fabric is taken out of the cylinder in a hot water soft mode to obtain the dyed fabric.
Compared with the prior art, the invention has the beneficial effects that:
(1) the invention provides a process for dyeing green by using low-alkali reactive dye, which comprises the following steps: step one, pretreatment; adding a chelating dispersant; step three, adding a dye; step four, adding a dyeing auxiliary agent; step five, cleaning; step six, softening; step seven, drying the cloth; and step eight, shaping the finished product. Since the anhydrous sodium sulphate and the soda ash are synchronously added in the dyeing auxiliary agent, the dye can be fully dissolved and synchronously adsorbed and fixed on the fiber, the using amount of the anhydrous sodium sulphate in the dyeing auxiliary agent is reduced, the mutual reaction of the dye and the dyeing auxiliary agent can be avoided, the problems of easy generation of color spots, color flowers and the like in the green dyeing process of the reactive dye are effectively solved, and the environment-friendly and energy-saving advantages are realized.
(2) The process for dyeing green by using the low-alkali reactive dye provided by the invention has the characteristics of simple process flow, low production cost and suitability for large-scale production.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects solved by the present invention more apparent, the present invention is further described in detail below with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1.
A process for dyeing green by using low-alkali reactive dye comprises the following steps:
step one, pretreatment: boiling the grey cloth for 45s at 80 ℃ in a dye vat by utilizing the treatment liquid;
wherein the treatment fluid comprises the following components in parts by weight:
1 part of degreasing agent
2 parts of hydrogen peroxide
2 parts of sodium carbonate;
step two, adding a chelating dispersant: after the pretreatment is finished, cooling to 40 ℃, and adding a chelating dispersant;
step three, adding a dye: heating to 80 deg.C, adding dye, stirring and mixing the dye and chelating dispersant for 10min, and heating to 85 deg.C for 15 min;
step four, adding a dyeing auxiliary agent: mixing anhydrous sodium sulfate and soda ash to obtain a dyeing auxiliary agent, cooling a dye vat to 80 ℃, adding the dyeing auxiliary agent for three times, and keeping the temperature for 30min after adding the dyeing auxiliary agent;
wherein in the dyeing auxiliary agent, the mass ratio of anhydrous sodium sulphate to sodium carbonate is 1: 1;
wherein, the dyeing auxiliary agent is added for three times, and the mass ratio of each addition is 1:2: 7;
step five, cleaning: cooling, sequentially carrying out water washing, peracid and water washing, adding a cotton soaping agent, heating to 95 ℃, and keeping the temperature for 10 min;
step six, softening: then cooling to 80 ℃, softening with hot water and taking out of the vat to obtain dyed fabric;
step seven, drying the cloth: tentering the dyed fabric obtained in the sixth step by using a high-temperature open-width dryer to dry the fabric;
step eight, shaping a finished product: and (5) tentering by adopting a high-temperature open-width dryer to shape the finished product.
Example 2.
A process for dyeing green by using low-alkali reactive dye comprises the following steps:
step one, pretreatment: boiling the grey cloth for 60s at 75 ℃ in a dye vat by using the treatment liquid;
wherein the treatment fluid comprises the following components in parts by weight:
0.5 part of degreasing agent
1 part of hydrogen peroxide
1 part of sodium carbonate;
step two, adding a chelating dispersant: after the pretreatment is finished, cooling to 35 ℃, and adding a chelating dispersant;
step three, adding a dye: heating to 75 deg.C, adding dye, stirring and mixing the dye and chelating dispersant for 5min, and heating to 80 deg.C for 20 min;
step four, adding a dyeing auxiliary agent: mixing anhydrous sodium sulfate and soda ash to obtain a dyeing auxiliary agent, cooling a dye vat to 75 ℃, adding the dyeing auxiliary agent for three times, and keeping the temperature for 20min after adding the dyeing auxiliary agent;
wherein in the dyeing auxiliary agent, the mass ratio of anhydrous sodium sulphate to sodium carbonate is 1: 0.8;
wherein, the dyeing auxiliary agent is added for three times, and the mass ratio of each addition is 1:2: 7;
step five, cleaning: cooling, sequentially carrying out water washing, peracid and water washing, adding a cotton soaping agent, heating to 90 ℃, and keeping the temperature for 15 min;
step six, softening: then cooling to 75 ℃, making the fabric soft by hot water and taking the fabric out of the cylinder to obtain a dyed fabric;
step seven, drying the cloth: tentering the dyed fabric obtained in the sixth step by using a high-temperature open-width dryer to dry the fabric;
step eight, shaping a finished product: and (5) tentering by adopting a high-temperature open-width dryer to shape the finished product.
Example 3.
A process for dyeing green by using low-alkali reactive dye comprises the following steps:
step one, pretreatment: boiling the grey cloth for 30s at 85 ℃ in a dye vat by utilizing the treatment liquid;
wherein the treatment fluid comprises the following components in parts by weight:
2 parts of degreasing agent
3 parts of hydrogen peroxide
3 parts of sodium carbonate;
step two, adding a chelating dispersant: after the pretreatment is finished, cooling to 45 ℃, and adding a chelating dispersant;
step three, adding a dye: heating to 85 deg.C, adding dye, stirring and mixing the dye and chelating dispersant for 15min, and heating to 90 deg.C for 10 min;
step four, adding a dyeing auxiliary agent: mixing anhydrous sodium sulfate and soda ash to obtain a dyeing auxiliary agent, cooling a dye vat to 85 ℃, adding the dyeing auxiliary agent for three times, and keeping the temperature for 40min after adding the dyeing auxiliary agent;
wherein in the dyeing auxiliary agent, the mass ratio of anhydrous sodium sulphate to sodium carbonate is 1: 1.2;
wherein, the dyeing auxiliary agent is added for three times, and the mass ratio of each addition is 1:2: 7;
step five, cleaning: cooling, sequentially carrying out water washing, peracid and water washing, adding a soaping agent for cotton, heating to 100 ℃, and keeping the temperature for 5 min;
step six, softening: then cooling to 85 ℃, and carrying out hot water softening and discharging to obtain a dyed fabric;
step seven, drying the cloth: tentering the dyed fabric obtained in the sixth step by using a high-temperature open-width dryer to dry the fabric;
step eight, shaping a finished product: and (5) tentering by adopting a high-temperature open-width dryer to shape the finished product.
Example 4.
A process for dyeing green by using low-alkali reactive dye comprises the following steps:
step one, pretreatment: boiling the grey cloth for 5s at 78 ℃ in a dye vat by using the treatment liquid;
wherein the treatment fluid comprises the following components in parts by weight:
0.8 part of degreasing agent
1.5 parts of hydrogen peroxide
1.5 parts of sodium carbonate;
step two, adding a chelating dispersant: after the pretreatment is finished, cooling to 38 ℃, and adding a chelating dispersant;
step three, adding a dye: heating to 78 deg.C, adding dye, stirring and mixing the dye and chelating dispersant for 8min, and heating to 82 deg.C for 12 min;
step four, adding a dyeing auxiliary agent: mixing anhydrous sodium sulfate and soda ash to obtain a dyeing auxiliary agent, cooling a dye vat to 78 ℃, adding the dyeing auxiliary agent for three times, and keeping the temperature for 25min after adding the dyeing auxiliary agent;
wherein in the dyeing auxiliary agent, the mass ratio of anhydrous sodium sulphate to sodium carbonate is 1: 0.9;
wherein, the dyeing auxiliary agent is added for three times, and the mass ratio of each addition is 1:2: 7;
step five, cleaning: cooling, sequentially carrying out water washing, peracid and water washing, adding a cotton soaping agent, heating to 92 ℃, and keeping the temperature for 8 min;
step six, softening: then cooling to 78 ℃, softening with hot water and taking out of the vat to obtain dyed fabric;
step seven, drying the cloth: tentering the dyed fabric obtained in the sixth step by using a high-temperature open-width dryer to dry the fabric;
step eight, shaping a finished product: and (5) tentering by adopting a high-temperature open-width dryer to shape the finished product.
Example 5.
A process for dyeing green by using low-alkali reactive dye comprises the following steps:
step one, pretreatment: boiling the grey cloth at 82 ℃ for 55s in a dye vat by using the treatment liquid;
wherein the treatment fluid comprises the following components in parts by weight:
0.5 to 2 portions of degreaser
1 to 3 portions of hydrogen peroxide
1-3 parts of sodium carbonate;
step two, adding a chelating dispersant: after the pretreatment is finished, cooling to 42 ℃, and adding a chelating dispersant;
step three, adding a dye: heating to 82 ℃, adding a dye, stirring and mixing the dye and the chelating dispersant for 12min, and heating to 88 ℃ for 18 min;
step four, adding a dyeing auxiliary agent: mixing anhydrous sodium sulfate and soda ash to obtain a dyeing auxiliary agent, cooling a dye vat to 82 ℃, adding the dyeing auxiliary agent for three times, and keeping the temperature for 35min after adding the dyeing auxiliary agent;
wherein in the dyeing auxiliary agent, the mass ratio of anhydrous sodium sulphate to sodium carbonate is 1: 1.1;
wherein, the dyeing auxiliary agent is added for three times, and the mass ratio of each addition is 1:2: 7;
step five, cleaning: cooling, sequentially carrying out water washing, peracid and water washing, adding a cotton soaping agent, heating to 98 ℃, and keeping the temperature for 8 min;
step six, softening: then cooling to 82 ℃ for making the fabric soft by hot water and taking the fabric out of the cylinder to obtain dyed fabric;
step seven, drying the cloth: tentering the dyed fabric obtained in the sixth step by using a high-temperature open-width dryer to dry the fabric;
step eight, shaping a finished product: and (5) tentering by adopting a high-temperature open-width dryer to shape the finished product.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (9)
1. A process for dyeing green by using low-alkali reactive dye is characterized by comprising the following steps: it comprises the following steps:
step one, pretreatment: boiling the grey cloth in a dye vat at a certain temperature for a certain time by using the treatment liquid;
step two, adding a chelating dispersant: after the pretreatment is finished, cooling to a certain temperature and adding a chelating dispersant;
step three, adding a dye: heating to a certain temperature, adding a dye, stirring and mixing the dye and the chelating dispersant for a certain time, and heating to a certain temperature and running for a certain time;
step four, adding a dyeing auxiliary agent: mixing anhydrous sodium sulfate and soda ash to be used as a dyeing auxiliary agent, cooling a dye vat to a certain temperature, adding the dyeing auxiliary agent for three times, and preserving heat for a certain time after the dyeing auxiliary agent is added;
step five, cleaning: after cooling, sequentially carrying out water washing, peracid and water washing, adding a soaping agent for cotton, heating to a certain temperature, and then keeping the temperature for a certain time;
step six, softening: then cooling to a certain temperature, softening with hot water and taking out of the vat to obtain a dyed fabric;
step seven, drying the cloth: tentering the dyed fabric obtained in the sixth step by using a high-temperature open-width dryer to dry the fabric;
step eight, shaping a finished product: and (5) tentering by adopting a high-temperature open-width dryer to shape the finished product.
2. The process for dyeing green by using the low-alkali reactive dye as claimed in claim 1, wherein the process comprises the following steps: in the first step, the grey cloth is boiled for 30-60 s at 75-85 ℃ in a dye vat by using the treatment liquid.
3. The process for dyeing green by using the low-alkali reactive dye as claimed in claim 1, wherein the process comprises the following steps: in the first step, the treatment fluid comprises the following components in parts by weight:
0.5 to 2 portions of degreaser
1 to 3 portions of hydrogen peroxide
1-3 parts of sodium carbonate.
4. The process for dyeing green by using the low-alkali reactive dye as claimed in claim 1, wherein the process comprises the following steps: in the second step, after the pretreatment is finished, the temperature is reduced to 35-45 ℃, and then a chelating dispersant is added.
5. The process for dyeing green by using the low-alkali reactive dye as claimed in claim 1, wherein the process comprises the following steps: in the third step, after the temperature is raised to 75-85 ℃, the dye is added, the dye and the chelating dispersant are stirred and mixed for 5-15 min, and the temperature is raised to 80-90 ℃ for 10-20 min.
6. The process for dyeing green by using the low-alkali reactive dye as claimed in claim 1, wherein the process comprises the following steps: in the fourth step, anhydrous sodium sulphate and sodium carbonate are mixed to be used as dyeing auxiliary agents, the temperature of a dye vat is reduced to 75-85 ℃, then the dyeing auxiliary agents are added for three times, and the temperature is kept for 20-40 min after the dyeing auxiliary agents are added.
7. The process for dyeing green by using the low-alkali reactive dye as claimed in claim 1, wherein the process comprises the following steps: in the fourth step, in the dyeing auxiliary agent, the mass ratio of the anhydrous sodium sulphate to the calcined soda is 1: 0.8-1.2;
and adding the dyeing auxiliary agent for three times, wherein the mass ratio of the dyeing auxiliary agent to the dyeing auxiliary agent added each time is 1:2:7 in sequence.
8. The process for dyeing green by using the low-alkali reactive dye as claimed in claim 1, wherein the process comprises the following steps: and in the fifth step, after cooling, water washing, peracid and water washing are carried out in sequence, and after adding a soaping agent for cotton, the temperature is raised to 90-100 ℃ and then the temperature is kept for 5-15 min.
9. The process for dyeing green by using the low-alkali reactive dye as claimed in claim 1, wherein the process comprises the following steps: and in the sixth step, cooling to 75-85 ℃, and taking out the fabric from the cylinder in a hot water softening manner to obtain the dyed fabric.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911356651.3A CN111088706A (en) | 2019-12-25 | 2019-12-25 | Process for dyeing green by low-alkali reactive dye |
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| CN201911356651.3A CN111088706A (en) | 2019-12-25 | 2019-12-25 | Process for dyeing green by low-alkali reactive dye |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104047159A (en) * | 2014-06-25 | 2014-09-17 | 江苏东源纺织科技实业有限公司 | Production process of full-cotton knitted fabric |
| CN107083697A (en) * | 2017-03-31 | 2017-08-22 | 际华三五四三针织服饰有限公司 | The emerald green airflow dyeing technique of single jersey |
| CN109610201A (en) * | 2018-12-12 | 2019-04-12 | 浙江劲光纺织科技有限公司 | A kind of colouring method of people's cotton low bath raio in air-flow cylinder |
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2019
- 2019-12-25 CN CN201911356651.3A patent/CN111088706A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104047159A (en) * | 2014-06-25 | 2014-09-17 | 江苏东源纺织科技实业有限公司 | Production process of full-cotton knitted fabric |
| CN107083697A (en) * | 2017-03-31 | 2017-08-22 | 际华三五四三针织服饰有限公司 | The emerald green airflow dyeing technique of single jersey |
| CN109610201A (en) * | 2018-12-12 | 2019-04-12 | 浙江劲光纺织科技有限公司 | A kind of colouring method of people's cotton low bath raio in air-flow cylinder |
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| 刘仁礼: ""纯棉针织物艳绿色活性浸染生产工艺实践"", 《针织工业》 * |
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